Florian Euchner DO7JE: Making WiFi Visible with ESPARGOS: Augmented Reality with Phase-Synchronized ESP32s

MIMO and phased array systems are increasingly common in both communications and sensing, yet they remain largely inaccessible to hobbyists due to their high cost. ESPARGOS demonstrates a low-cost method for building phase-coherent antenna arrays using inexpensive, off-the-shelf ESP32 chips. This system is paired with an augmented reality application that overlays real-time propagation paths onto a live camera feed, enabling users to visualize and interactively explore electromagnetic wave propagation. This talk will explain the basic operating principle of ESPARGOS and the augmented reality visualization software.

The SDRA is an all day conference on Software Defined Radio and Digital Signal Processing.
See: https://2025.sdra.io/pages/programme.html